Lister cultivator



Nov. 12, 1929. A. D. GALLAGHE LI STER CULTIVATOR Filed April 2. 192s 5 sheets-sheet Nov. l2, 1929.

A. D. GALLAGHER 1,735,568 LISTER CULTIVATOR Filed April 2, 1923 3 Sheets-Sheet 3 I sin r Patented Nov. 12 1929 UNITED [STATES Arent rnc-s ARTHUR D. GALLAGI-IER, 0F SOUTH BEND, INDIANA, ASSIGNOR, BYMESNE'ASSIGN- MENTS, T0 OLIVER FARM EQUIPMENT COMIANY, A CORPORATION OF 1DELAVV'AREv f LISTER CULTIVATOR t VApplication led April 2,

4disposed side by side and maintained substantially parallel so that they will not interfere with each other during turning move- .ments of the cultivator.

- gang units may pivot both vertically and laterally, and at the same time be held rigidly against turning on aXes coincident with the longitudinal axes of the cultivator gang units, thus maintaining said units parallel, transversely, with the transversely disposed draft bar orbeam tractor.

A further obj ect is to so couple the cultivator units of a multi-unit cultivator having which isrigidly secured to the carryingwheels, that the earth-working elements will be raised automatically when the ground or carrying wheels run out of the ends of furrows. Y

With these and other objects in view, the

l.invention consists in certain novel features of construction and combinations `of parts as hereinafter set forth and pointed out in the, claim.

In the accompanying drawings,-

Figure 1 is a plan View of a multi-unit cultivator connected with a tractor and showing an embodiment of my invention.

Figure 2 is a side elevation with the parts in normal working positions. l

Figure 3 is a side elevation showing the positions of the parts, with the earth-working elements raised, after the ground wheels shall have run out of the end of a furrow.

Figure 4 is a view in side elevation showing the earth-working elements Vraised to maxi- 192s. serial No; 629,441.

mum height to, facilitate thetransporting of the cultivator, and

Figures 5, 6 and 7 are enlarged detail views showing the coupling devices. j f

In the drawings, a tractor is represented at 1 and at 2 a transversely vdisposed draft beam for connection of the several cultivator unitsB, 1, 5, is shown. The draft beam 2 is rigidly connected with the tractor through the medium of a rigid yoke or ,frame 6 bolted intermediate of its ends to a part of the tractor and at its rear flaring lends tothe-interl Each cultivator unit comprises aforwar frame 7 including a` forwardlyprojecting tongue or beam'8, and a rear frame 9 pivot-` ally connected at 1() with the rear'portion of; the forward .frame and supported on carrying or ground wheels 11,-said rear frame having arms or bars 12 adjustably attached thereto and projecting rearwardly for carrying shovels 13 and said rea-r frame is -also provided with adjustable arms or bars 14 whichcarry mediate part of the draft beam 2.] 1

ycultivator disks 15. l Suitable hand operated devices shown at 16 are provided for raising, lowering and adjusting the cultivator shovels and a lever 17 pivotally supported between its ends by the forward frame 7 and providedv with a detent for cooperation with a toothed segment 18, has its.A lower end connected through the .medium of rods 19 with thejaXle of the carrying wheels and thus in effect with the rear portion of the ',pivoted rear frame. It isapparent that by operating the lever 17, the rearframe may bei raised or lowered and when raised the earth-working elements will be elevated, as shown in Fig. 4.

The transversely `disposeddraft beam 2is preferably made in the'form ,of angle-iron and to its rear upwardly projecting member',` a plurality of ,approximately U-shaped j brackets 20 are securely bolted. Between the rearwardly projecting end Vmembers of: each: bracket 20, a coupling member 2l-is loosely mounted. Each coupling member comprises a horizontal sleeve or tubular 'arm 22 and 'af vertical sleeve or` tubular arm `23 integral therewith. Arod'or bolt 24: Vpasses through the tubular memberv 22` topivotally connect y the same with the bracket 20. The vertical '-100 sleeve or member 23 is disposed bet-Ween the arms of a bracket 25 secured to the forward end of beam 8 and is pivotally connected With said bracket 25 by means of a bolt or rod 26 passing through said member 23 and the arms 1 of said bracket.

With the construction and ,arrangement of coupling above described, vertical movement of the cultivator unit Will be permittedvbut upward:verticalfmovemell IIlLy-be limited-by means of `rastoparm y2 7 projecting i'orvvardly from the central portion of the coupling member 2l and adapted to engage the transverse draft beam 2. The cultivator unit Will thus be prevented from jumping fromrthe furrow when passing over obstructions. It is also apparent that with my improvements, horizontal movement of the clultivator kunit-s Will be permitted through the medium of the pivotal connectionof the for-Ward end of eachf unit with the vertical sleeve 23 pling member. Y -While the vertical and horizontal movements of the cultivator units'will be permitted, said units will be prevented by reason of myimprovements from capsizing b turning onaxes coincident with Ithelonblfitu mal axes of the cultivator gang units.

By connecting the several cultivator or gang vvunits Jin the manner yabove describe-d with a transversely disposed draft beam rigidly connected) with the tractor, the several units Will be kept substantially parallel With Veach other and 'conliict ormone unit With anV other during turning movements of the -cultivator Avvill vbe avoided.' l

When the :cultivator uni-ts run out ofv the ends of urrows their carrying Wheels Will run up the hills `nined thefurrow ends and `the units Y"will be raised, ,turning on the horionta'l pivotsbetvveen the forward ends of said units and the draft beam 2 and 'the` earth-.Working elements vvill thus becaused to be elevated as represented in Fig. 3; Y' F urther elevation of the earthworkinglelements, to facilitate transporting of the cultivaftor, maybe effected by theraising and lowering devices indicated at 17 and said fearth-vv'ork-v ingelements will then assume the vposition indicated in Fig. 4. If .the groundvvheels should .pass over -ia risein `the furrow or an obstruction osuch height that the stoprarm 27 is rocked down `to the draft'beaimthe arm will lielpto sustain-the Avveightof the elevate-d elements, thereby relieving the strain upon the pivotal connections.

I Gleim efsrllev .arid desire@ Secure by Lett-ers Patent, .is

V-I'i-"ali cultvator, the .combination `with a transverse l'raft'bearntc be .disposed vin rear e 0f a tractor, ineens for rigidly securing the said]draftbeamto a. tractor, .and a plurality 0f .Cllltyator 0f .a coupling jdevice for each filer, achecupling device' comprising of the cou,- s

Having fully'described my linvention"What l l 

